"troup, g j. "
mechanics: / g.j. troup - 1 ed. - australia : longman 1976. - ", 204p.; 21 cm."
0 582 71061 8
--
620. 1 tro
mechanics: / g.j. troup - 1 ed. - australia : longman 1976. - ", 204p.; 21 cm."
0 582 71061 8
--
620. 1 tro